JP3147150U - cooling tower - Google Patents

Abstract

The present invention provides a cooling tower capable of preventing water from being excessively increased and enabling water treatment while ensuring safety.
A lower water tank 4 to which a cooling water supply pipe 5 is connected is disposed at a lower portion of a cooling tower main body provided with an intake hole, and a fan 7 is provided at an upper center of the cooling tower main body. A watering plate 8 is provided on the side, a filler 9 is filled below the watering plate 8, and a riser pipe 11 for supplying water to the watering plate 8 is disposed in a ventilation space 10 formed between the fillers 9. In the cooling tower 1, the branch pipe 12 is connected to the rising pipe 11 in the ventilation space 10, and a dissolver 13 for dissolving and discharging the drug is provided in the branch pipe 12 above the water level of the lower water tank 4. Only when the cooling tower is in operation, a part of the water rising in the ascending pipe 11 is taken into the dissolver 13, and it is possible to dissolve the chemical with this taken-in water and drop it into the lower water tank 4. It is characterized by that.
[Selection] Figure 2

Description

  The present invention relates to a cooling tower, and more particularly to a cooling tower capable of water treatment while preventing an excessive increase in chemical concentration and ensuring safety.

  As is well known, a cooling tower is known to circulate and supply cooling water used for air conditioning and cooling in buildings, factories, etc., but this cooling tower is generally a square or round box. The cooling tower main body is provided, and water is circulated between the air conditioning equipment such as a heat exchanger and the cooling tower main body, and the water temperature is lowered inside the cooling tower main body and supplied to the heat exchanger or the like. .

  Here, a general cooling tower will be described with reference to FIG. 4. FIG. 4 is a schematic cross-sectional view for explaining the structure of a general cooling tower. The cooling tower body 32 has intake holes for taking in outside air formed in the left and right side walls in the front view (not shown).

  In addition, the cooling tower body 32 includes a lower water tank 33 at the bottom thereof and 34 fans at the center upper portion. A watering plate 35 is disposed on the left and right sides of the fan 34, and below the watering plate 35. Is filled with a filler 36.

  Then, water is supplied into the water spray plate 35 through the riser pipe 37 piped inside the cooling tower body 32, and this water is caused to flow down to the filler 36, and the fan 34 is driven, as indicated by arrows. In addition, the taken-in outside air is exhausted while taking the outside air into the cooling tower body 32 through the intake holes and the filler 36.

  Then, a part of the water flowing down from the water spray plate 35 to the filler 36 evaporates in the process of flowing down, so that the temperature of the water flowing down is lowered by depriving latent heat, and the water whose temperature has been lowered. Is supplied to the lower water tank 33, and then the water supplied to the lower water tank 33 is supplied to a heat exchanger or the like.

  By the way, in general, in a cooling tower, microorganisms such as algae and bacteria adhere to the watering plate and filler, and this reduces the efficiency, so that water treatment such as sterilizing circulating water as in a pool or the like. is required.

  Therefore, conventionally, using a dissolver used for water treatment of a pool, the water is treated only when the dissolver is submerged in the lower water tank and the water in the lower water tank is treated or when the cooling tower is in operation. A method is used in which a dissolver is placed on a watering plate through which water flows, and thereby water is treated before flowing down into the filler.

  Here, FIG. 5 is a cross-sectional view showing the structure of a dissolver 41 conventionally used for pool water treatment and cooling tower water treatment. The dissolver 41 generally includes a dissolver body 42. The dissolver main body 42 is a bottomed container, a water intake port 4201 is formed in the upper portion, a solution discharge hole 4202 is formed in the lower portion, and the upper portion is detachable. It is closed with a lid 43.

  In use, a solubilizing solid medicine such as bleaching powder or trichloroisocyanuric acid is added to the inside of the solubilizer main body 42, and the solubilizer 41 in this state is submerged in water or with an arrow. Water is poured into the dissolver body 42 to the indicated position. Then, water enters the dissolver main body 42, the internal desolubilized solid medicine is dissolved by the water, and the dissolved medicine is discharged to the outside, thereby enabling water treatment.

  Therefore, conventionally, as described above, as a method of performing water treatment of the cooling tower, as described above, a method of performing water treatment of water in the lower water tank by sinking the dissolver as described above, or during operation of the cooling tower Only a method of placing a dissolver on a water spray plate through which water flows and treating the water before flowing down to the filler has been adopted.

  However, as described above, the dissolver generally has a structure in which the drug is dissolved and discharged by putting water into the dissolver containing the drug. Therefore, such a dissolver is submerged in the lower aquarium and cooled. When water treatment is performed, chemicals continue to be dissolved and supplied even while the cooling tower is stopped, so the chemical concentration increases excessively, which causes problems such as corrosion and odor generation in the structural material. There is a problem that.

  In this regard, when the method of placing a dissolver on a water spray plate that allows water to flow only during operation of the cooling tower, the chemical concentration is excessively increased because the chemical is dissolved and supplied even when the cooling tower is stopped. However, since the water spray plate is generally located at a height of 2 m or more from the lower end of the cooling tower, when a dissolver is placed on the water spray plate, it is dangerous to replenish the drug and the remaining of the drug. There is a problem that the amount cannot be easily confirmed.

  Then, this invention makes it a subject to provide the cooling tower which enabled water treatment, preventing the excessive raise of a chemical | medical agent concentration, and ensuring safety | security.

The cooling tower of the present invention has a lower water tank connected with a cooling water supply pipe connected to a lower part of a cooling tower main body having an intake hole, and a fan at the upper center of the cooling tower main body. An upper sprinkler plate is provided on the left-right side, a filler is filled below the sprinkler plate, and a riser pipe for supplying water to the sprinkler plate is disposed in a ventilation space formed between the fillers. In the cooling tower,
A branch pipe is connected to the ascending pipe in the ventilation space, and a dissolver for dissolving and discharging the drug is connected to the branch pipe above the water level of the lower water tank.

  In the cooling tower of the present invention, in the ventilation space in the cooling tower body, a branch pipe is connected to a riser pipe for supplying water to the upper sprinkler plate, and this branch pipe is connected above the water level of the lower water tank. In this way, a part of the cooling water supplied to the sprinkler plate is taken into the dissolver via the branch pipe during the operation of the cooling tower, and the dissolved water is taken up by the taken-in water. The chemical inside is dissolved, and this dissolved water is dropped into the lower water tank for water treatment.

  For this reason, the cooling tower of the present invention prevents chemicals from being dissolved and supplied while the cooling tower is stopped, preventing the chemical concentration from rising excessively and causing troubles such as corrosion and odor generation to the structural material. it can.

  Further, in the cooling tower of the present invention, since the dissolver is connected to the branch pipe communicating with the riser pipe in the ventilation space in the cooling tower main body, it is not necessary to perform replenishment of the drug at a high place, There is no danger associated with supplementation of the medicine, and the remaining amount of the medicine can be easily confirmed.

  The cooling tower of the present invention has a cooling tower body. And in the cooling tower main body, the intake hole is formed in the opposing side wall.

  In the cooling tower body, a lower water tank is disposed at the bottom, and a cooling water supply pipe for supplying cooling water in the lower water tank to the outside is connected to the lower water tank.

  Further, a fan is provided at the center upper portion of the cooling tower body, and by driving the fan, outside air can be taken into the cooling tower body through the intake holes and the taken outside air can be exhausted.

  An upper watering plate is provided on the left and right sides of the fan, and a filler for flowing water in the watering plate is filled below the upper watering plate, and a ventilation space is provided between the fillers. It is said that.

  Further, a riser pipe for supplying cooling water to the water spray plate is inserted in the ventilation space in the cooling tower body, and the tip of the riser pipe is arranged to supply water to the water spray plate. The end side extends outside from the cooling tower body and is connected to an air conditioning facility or the like.

  In the ventilation space, a branch pipe is connected to the riser pipe, and a dissolver for dissolving and discharging the drug is connected to the branch pipe above the water level of the lower water tank. .

  Here, the connecting position of the dissolver is not particularly limited, and may be any as long as it is above the water level of the lower water tank. For example, the branch pipe may be connected in the ventilation space. It is possible to drop the solution into the lower water tank without removing the water.

  In addition, the branch pipe is extended to the outside of the cooling tower body, a dissolver is connected to the branch pipe outside the cooling tower body, and a receptacle communicating with the inside of the cooling tower body is arranged below the dissolver. It is possible to supply the dissolution liquid into the lower water tank via the receptacle, and according to this, it is possible to easily check the remaining amount of the medicine.

  An embodiment of a cooling tower of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the cooling tower of the present embodiment, and FIG. 2 is for explaining the structure of the cooling tower of the present embodiment. In the figure, reference numeral 1 denotes a cooling tower of the present embodiment.

  In the present embodiment, the cooling tower 1 has a bottomed box-shaped cooling tower body 2, and outside air is introduced into the cooling tower body 2 on the left and right side walls of the cooling tower body 2. Many intake holes 3 for taking in are formed. In the figure, 201 is a front door that can be freely opened and closed on the front side of the cooling tower body 2, and 202 in the figure is a leg that is attached to the lower part of the cooling tower body 2.

  Next, in the cooling tower main body 2, a lower water tank 4 is disposed at the bottom, and the water cooled in the cooling tower 1 is supplied to the lower water tank 4 to a heat exchanger or the like to be cooled. The cooling water supply pipe 5 is connected, and further, a supply pipe 6 for supplying water into the lower water tank 4 is connected.

  In the figure, reference numeral 7 denotes a fan. That is, in this embodiment, a fan 7 is provided at the center upper portion of the cooling tower body 2, and the fan 7 closes the center upper portion of the cooling tower body 2 and cools the fan 7 via the fan 7. The tower body 2 communicates with the outside.

  Next, watering plates are arranged on the left and right sides of the fan 7 in the front view. That is, 8 is a watering plate in the figure, and in the present embodiment, the watering plate 8 is in the form of a tray, and as is clear from FIG. 1, holes of about 10 mm are formed uniformly on the entire bottom surface. Yes.

  And the lower part of this sprinkling board 8 is filled with the filler over the whole height direction area | region of the cooling tower main body 2, respectively. That is, in the figure, 9 is a filler, and in this embodiment, the filler 9 is disposed below the watering plate 8, so that a pair is filled at intervals, and this pair of fillings A space 10 is provided between the materials 9. In the present embodiment, the filler 9 is a plastic thin plate with irregularities, and this thin plate is arranged innumerably at a pitch of about 10 mm.

  In addition, when the fan 7 is driven, each of the fillers 9 passes through the intake holes 3 from the inside of the cooling tower body 2 so that outside air passes through the filler 9 and is taken into the cooling tower body 2. Therefore, the water spray plate 8 is also arranged on the intake hole 3 side. Specifically, in this embodiment, as described above, the air intake holes 3 are formed in the left and right side walls of the cooling tower body 2, and the water spray plate 8 serves as the fan 7 in the front view. It arrange | positions at the left-hand right side, and the filler 9 is filled under the sprinkling plate 8. Accordingly, each of the fillers 9 is filled in the cooling tower body 2 at a position facing the intake holes 3, so that the outside air taken into the cooling tower body 2 through the intake holes 3 is shown in FIG. Similar to the general cooling tower shown, after passing through the filler 9, it rises through the ventilation space 10 and is then exhausted through the fan 7.

  Next, reference numeral 11 in the figure denotes an ascending pipe for supplying cooling water to the watering plate 8. That is, in the cooling tower 1 in the present embodiment, the rising pipe 11 is disposed in the ventilation space 10, the proximal end side of the rising pipe 11 is connected to an external heat exchanger or the like, and the distal end side is The arrangement is such that water can be supplied into the watering plate 8, and an opening is formed in the watering plate 8 or above the watering plate 8. As a result, water whose temperature has risen due to heat exchange or the like can be supplied to the water spray pipe 8 while being raised in the rise pipe 11 in the ventilation space 10 by the action of a pump or the like (not shown).

  Next, 12 is a branch pipe in the figure. That is, in the cooling tower 1 of the present embodiment, a branch pipe is connected to the rising pipe 11 in the ventilation space 10. In the ventilation space 10, a dissolver 13 having the same configuration as the above-described dissolver is connected to the branch pipe 12.

  Therefore, in the cooling tower 1 of the present embodiment, a part of the water that has risen up the ascending pipe 11 during operation is taken into the dissolver 13 via the branch pipe 12, and thereby the drug is dissolved by the taken-in water. Is done.

  At this time, in the cooling tower 1 of this embodiment, the dissolver 13 is connected to the branch pipe 12 in the ventilation space 10, that is, the branch pipe 12 is above the water level of the lower water tank 4. Since the dissolver 13 is connected, the dissolved drug falls into the lower water tank 4, whereby the circulating water can be easily treated.

  Next, the operation of the cooling tower 1 of this embodiment configured as described above will be described. Water whose temperature has risen due to heat exchange in a heat exchanger or the like is supplied to the riser 11 by a pump or the like (not shown) and rises. After rising in the pipe 11, it is supplied into the watering plate 8. Then, the water supplied into the watering plate 8 falls to the filler 9 through a hole formed in the bottom surface of the watering plate 8.

  On the other hand, by driving the fan 7, the outside air is taken into the cooling tower body 2 through the intake holes 3, and the taken outside air is guided to the ventilation space 10 through the filler 9, and this ventilation After ascending the space 10, the air is exhausted to the outside of the cooling tower body 2.

  Then, a part of the water flowing down from the spray plate 8 to the filler 9 evaporates in the process of flowing down, and further this evaporation is promoted by the passage of the outside air, and the latent heat is taken away during the evaporation. The temperature of the running water is lowered, and the water whose temperature is lowered falls into the lower aquarium 4. And the water which fell in this lower water tank 4 is supplied to a heat exchanger etc. through the cooling water supply pipe | tube 5, and after the water temperature rises by heat exchange, it is circulated through the cooling tower main body 2 again. At this time, the amount of water lost due to evaporation is supplied to the lower water tank 4 through the supply pipe 6.

  In these processes, a part of the water rising up the ascending pipe 11 is diverted to the branch pipe 12 and enters the dissolver 13, and the drug in the dissolver 13 is dissolved by this water, The dissolved medicine falls downward from the dissolver 13 and enters the lower water tank 4, whereby water treatment of water circulating between the cooling tower and the heat exchanger is performed.

  At this time, in the cooling tower 1 of the present embodiment, the branch pipe 12 is connected to the rising pipe 11 through which water passes only during the operation of the cooling tower, and the dissolver 13 is connected to the branch pipe 12. Since the chemical in the dissolver 13 is dissolved only during the operation of the cooling tower 1, the chemical is dissolved and supplied while the cooling tower 1 is stopped. It is possible to prevent troubles such as odor generation.

  Further, in the cooling tower 1 of the present embodiment, the branch pipe 12 is communicated with the rising pipe 11 in the ventilation space 10 in the cooling tower main body 2 and is generally arranged in the ventilation space in the cooling tower. Unlike the pipe arranged outside the cooling tower main body, the riser pipe is not made of iron but is a VP pipe. Therefore, the branch pipe can be easily formed by using the branch saddle.

  Furthermore, in the cooling tower 1 of the present embodiment, the dissolver 13 is connected to the branch pipe 12 above the water level of the lower water tank 4, so that the drug dissolved in water easily falls into the lower water tank 4. It is possible to make it.

  In the cooling tower 1 of the present embodiment, since the dissolver 13 is connected to the branch pipe 12 communicating with the rising pipe 11 in the ventilation space 10 in the cooling tower body 2, the chemical replenishment or the like is performed at a high place. Since it is not necessary to carry out the procedure, there is no danger when the drug is replenished, and the remaining amount of the drug can be easily confirmed.

  In the above-described embodiment, the case where the container 13 is connected to the branch pipe 12 in the ventilation space 10 and above the water level of the lower water tank 4 has been described. As long as the dissolver 13 is connected to the branch pipe 12, the configuration is not necessarily limited to this.

  For example, FIG. 3 is a view showing another form of the cooling tower of the present invention. In the cooling tower 1 of the form shown in FIG. 3, the branch pipe 12 is extended to the outside of the cooling tower body 2, and the cooling tower body is shown. 2, a dissolver 13 is connected to the branch pipe 12. A receiver 14 that communicates with the inside of the cooling tower body 2 is disposed below the dissolver 13 to receive the dissolved medicine into the receiver 14 and drop the received medicine into the lower water tank 4. It has a structure to let you.

  According to this configuration, as in the case described above, water treatment can be performed only during the operation of the cooling tower, the remaining amount of the medicine can be easily confirmed, and the replenishment work of the medicine can be facilitated.

  3 is characterized in that the dissolver 13 is connected to the outside of the cooling tower main body 2 and the other components are the same as those in the above-described embodiment. The same reference numerals are given, and duplicate descriptions are omitted.

  In the cooling tower of the present invention, in the cooling tower, a branch pipe is connected to the riser pipe in the ventilation space in the cooling tower main body, and a water treatment dissolver is connected to the branch pipe. It is applicable to all cooling towers that require water treatment because it has a structure that takes into account only water treatment and safety.

It is a perspective view of the Example of the cooling tower of this invention. It is a schematic sectional drawing which shows the structure of the Example of the cooling tower of this invention. It is a schematic sectional drawing which shows the structure of the other form of the cooling tower of this invention. It is a figure for demonstrating the structure of a common cooling tower. It is a figure for demonstrating a dissolver.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooling tower 2 Cooling tower main body 3 Intake hole 4 Lower water tank 5 Cooling water supply pipe 6 Supply pipe 7 Fan 8 Sprinkling plate 9 Filler 10 Ventilation space 11 Rising pipe 12 Branch pipe 13 Solubilizer 14 Receptacle

Claims (3)

A lower water tank (4) to which a cooling water supply pipe (5) is connected is disposed at the lower part of the cooling tower body (2) having an intake hole (3), and the center upper part of the cooling tower body (2). Is provided with a fan (7), a water spray plate (8) is provided on the left and right sides of the fan (7), a filler (9) is filled below each of the water spray plate (8), and the filler ( 9) In the cooling tower (1) in which the riser pipe (11) for supplying water to the water spray plate (8) is arranged in the ventilation space (10) formed between
In the ventilation space (10), a branch pipe (12) is connected to the riser pipe (11), and a dissolver (13) for dissolving and discharging the drug above the water level of the lower water tank (4). ) Is connected to the branch pipe (12).   In the ventilation space (10), the dissolver (13) is connected to the branch pipe (12), and the dissolved drug can be dropped from the dissolver (13) into the lower water tank (4). The cooling tower according to claim 1.   The branch pipe (12) extends outside the cooling tower body (2), and the dissolver (13) is connected to the branch pipe (12) outside the cooling tower body (2). A receiver (14) communicating with the inside of the cooling tower body (2) is disposed below (13), and the dissolved drug is dropped from the dissolver (13) into the receiver (14), The cooling tower according to claim 1, characterized in that the dissolved medicine is dropped into the lower water tank (4) through the receptacle (14).

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